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2,462 results on '"Fernandez, A. I."'

158. Luttinger liquid with asymmetric dispersion

Author

Fernández, Victoria I., Iucci, Aníbal, and Naón, Carlos M.

Subjects
Condensed Matter - Strongly Correlated Electrons
Abstract

We present an extension of the Tomonaga-Luttinger model in which left and right-moving particles have different Fermi velocities. We derive expressions for one-particle Green's functions, momentum-distributions, density of states, charge compressibility and conductivity as functions of both the velocity difference $\epsilon$ and the strength of the interaction $\beta$. This allows us to identify a novel restricted region in the parameter space in which the system keeps the main features of a Luttinger liquid but with an unusual behavior of the density of states and the static charge compressibility $\kappa$. In particular $\kappa$ diverges on the boundary of the restricted region, indicating the occurrence of a phase transition., Comment: revtex, 4 pages, 2 figures. Version to appear in EPJB

Published
2002
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159. Non local Thirring model with backward and umklapp interactions

Author

Fernández, V. I., Iucci, C. A., and Naón, C. M.

Subjects
High Energy Physics - Theory, Condensed Matter - Strongly Correlated Electrons
Abstract

We extend a non local and non covariant version of the Thirring model in order to describe a many-body system with backward and umklapp scattering processes. We express the vacuum to vacuum functional in terms of a non trivial fermionic determinant. Using path-integral methods we find a bosonic representation for this determinant which allows us to obtain an effective action for the collective excitations of the system. By introducing a non local version of the self-consistent harmonic approximation, we get an expression for the gap of the charge-density excitations as functional of arbitrary electron-electron potentials. As an example we also consider the case of a non contact umklapp interaction., Comment: 19 pages, no figures

Published
2001
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165. Friedel oscillations in a Luttinger liquid with long-range interactions

Author

Fernández, Victoria I. and Naón, Carlos M.

Subjects
Condensed Matter - Strongly Correlated Electrons, Condensed Matter - Statistical Mechanics, High Energy Physics - Theory
Abstract

We introduce a path-integral approach that allows to compute charge density oscillations in a Luttinger liquid with impurities. We obtain an explicit expression for the envelope of Friedel oscillations in the presence of arbitrary electron-electron potentials. As examples, in order to illustrate the procedure, we show how to use our formula for contact and Coulomb potentials., Comment: 11 pages, no figures, latex. Revised version to appear in PRB

Published
2000
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166. Fabrication of fluidic devices with 30 nm nanochannels by direct imprinting

Author

Fernandez-Cuesta, I, Liang, X, Zhang, J, Dhuey, S, Olynick, D, and Cabrini, S

Subjects
microfluidics, nanofluidics, nanolithography, nanopatterning, soft lithography, ultraviolet lithography, Atmospheric Sciences, Materials Engineering, Aerospace Engineering, Applied Physics
Abstract

In this work, we propose an innovative approach to the fabrication of a complete micro/nano fluidic system, based on direct nanoimprint lithography. The fabricated device consists of nanochannels connected to U-shaped microchannels by triangular tapered inlets, and has four large reservoirs for liquid input. A master silicon stamp with the multilevel structures is fabricated first, and then a negative replica is made, to be used as a stamp for ultraviolet nanoimprint lithography (UV-NIL). Afterwards, just one single UV-NIL step is necessary for patterning all the the micro and nanostructures. Furthermore, the devices are made of all-transparent materials, and the method allows flexibility for the type of substrates used. The active material (an inorganic-organic hybrid polymer) used for the fabrication of the device has been carefully chosen, so it has adequate surface properties (inert and hydrophilic) for its direct use for biological applications. Devices having 30 nm wide, 30 nm deep nanochannels have been fabricated, and the successful performance of the fluidic system and the continuity of the nanochannels have been proven by flow tests. © 2011 American Vacuum Society.

Published
2011

167. Field-theory computation of charge-density oscillations in a Tomonaga-Luttinger model with impurities

Author

Fernández, Victoria I. and Naón, Carlos M.

Subjects
Condensed Matter - Strongly Correlated Electrons, Condensed Matter - Statistical Mechanics, High Energy Physics - Theory, Mathematical Physics
Abstract

We compute the charge-density oscillations in a Tomonaga-Luttinger model with impurities for a short-range electron-electron potential., Comment: 9 pages, to be published in the Proceedings of XX Encontro Nacional de Fisica de Particulas y Campos, Sao Lourenco, Brasil, held in October 1999

Published
1999

168. A System to study the Evolution of Cardiac Arrhythmias at Home

Author

Gonzalez-Fernandez, R. I., Mulet-Cartaya, M. L., Lopez-Cardona, J. D., Lopez-Reyes, A., Canto-Hernandez, O., Ledesma Valdes, E., Rodríguez-Peraza, V., Gonzalez-Acosta, P., Gomez-Florido, M., Magjarevic, Ratko, Editor-in-Chief, Ładyżyński, Piotr, Series Editor, Ibrahim, Fatimah, Series Editor, Lacković, Igor, Series Editor, Rock, Emilio Sacristan, Series Editor, Torres, Isnardo, editor, Bustamante, John, editor, and Sierra, Daniel A., editor

Published
2017
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169. Study of Calcined Mixtures from Industrial Residues for Production of Agglomerates

Author

Fernandez, L. I. C., Pedroti, L. G., Ferreira Filho, E. B., Alvarenga, R. C. S. S., Justino, L. G., Fernandes, W. E. H., Ikhmayies, Shadia, editor, Li, Bowen, editor, Carpenter, John S., editor, Li, JIan, editor, Hwang, Jiann-Yang, editor, Monteiro, Sergio Neves, editor, Firrao, Donato, editor, Zhang, Mingming, editor, Peng, Zhiwei, editor, Escobedo-Diaz, Juan P., editor, Bai, Chenguang, editor, Kalay, Yunus Eren, editor, Goswami, Ramasis, editor, and Kim, Jeongguk, editor

Published
2017
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171. Bilateral Subdiaphragmatic Vagal Nerve Stimulation Using a Novel Waveform Decreases Body Weight, Food Consumption, Adiposity, and Activity in Obesity-Prone Rats

Author

Leinen, Monique, primary, Grandy, Elise F., additional, Gebel, Lourdes M. Ubeira, additional, Santana, Tahimi Machin, additional, Rodriguez, Amanda L., additional, Singh, Sundip K., additional, Fernandez, Michael I., additional, Dalugdug, Justin C., additional, Garcia-Colon, Elaine M., additional, Lybeshari, Kamela, additional, Alexander, Daniel R., additional, Maura, Maria I., additional, Gonzalez, Maria D. Cabrera, additional, De Paula Cunha Almeida, Caroline, additional, Anyaso-Samuel, Samuel, additional, Datta, Somnath, additional, and Schiefer, Matthew A., additional

Published
2023
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172. Major cardiovascular events in patients with atrial fibrillation and active lung cancer: data from the CANAC-FA registry, a multicentre, retrospective, observational study

Author

Ruiz Ortiz, M, primary, Piserra Lopez-Fernandez De Heredia, A, additional, Delgado Ortega, M, additional, Mesa Rubio, D, additional, Moreno Vega, A, additional, Diaz Exposito, A, additional, Perez Cabeza, A, additional, Trigo Perez, J M, additional, Fernandez Valenzuela, I, additional, Chaparro Munoz, M, additional, Garcia Manrique, T, additional, Alarcon De La Lastra Cubiles, I, additional, Sanchez Fernandez, J J, additional, Carrillo Bailen, M, additional, and Torres Llergo, J, additional

Published
2023
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173. Impact of cardiovascular events and major bleeding in mortality in patients with atrial fibrillation and active lung cancer: data from a multicentre, retrospective, observational study

Author

Ruiz Ortiz, M, primary, Piserra Lopez-Fernandez De Heredia, A, additional, Mesa Rubio, D, additional, Delgado Ortega, M, additional, Moreno Vega, A, additional, Alarcon De La Lastra Cubiles, I, additional, Sanchez Fernandez, J J, additional, Calvete Cadenas, J, additional, Diaz Exposito, A, additional, Perez Cabeza, A, additional, Trigo Perez, J M, additional, Fernandez Valenzuela, I, additional, Chaparro Munoz, M, additional, Carrillo Bailen, M, additional, and Torres Llergo, J, additional

Published
2023
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174. Frailty prevalence among older decompensated heart failure patients

Author

Fernandez-Berges, D, primary, Vazquez-Jaren, E, additional, Mayoral Teston, N, additional, Salgado Gil, N, additional, Zaro Bastanzuri, M J, additional, Fernandez Morillo, I, additional, Maese Calvo, J, additional, Munoz Salvador, L, additional, Arrighi Soria, I, additional, and Gonzalez Fernandez, R, additional

Published
2023
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179. Path-integral formulation of backward and umklapp scattering for 1d spinless fermions

Author

Fernández, V. I. and Naón, C. M.

Subjects
High Energy Physics - Theory, Condensed Matter
Abstract

We present a (1+1)-dimensional fermionic QFT with non-local couplings between currents. This model describes an ensemble of spinless fermions interacting through forward, backward and umklapp scattering processes. We express the vacuum to vacuum functional in terms of a non trivial fermionic determinant. Using path-integral methods we find a bosonic representation for this determinant. Thus we obtain an effective action depending on three scalar fields, two of which correspond to the physical collective excitations whereas the third one is an auxiliary field that is left to be integrated by means of an approximate technique., Comment: 12 pages, latex, no figures. Submitted to Teor.Mat.Fiz. (Russia), Proceedings of the Second International Conference on Exactly Solvable in Mathematical Physics, Chelyabinsk, Russia, August 1998. Authors names corrected

Published
1998
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186. Whole-genome sequencing of European autochthonous and commercial pig breeds allows the detection of signatures of selection for adaptation of genetic resources to different breeding and production systems

Author

Bovo, Samuele, Ribani, Anisa, Muñoz, Maria, Alves, Estefania, Araujo, Jose P., Bozzi, Riccardo, Čandek-Potokar, Marjeta, Charneca, Rui, Di Palma, Federica, Etherington, Graham, Fernandez, Ana I., García, Fabián, García-Casco, Juan, Karolyi, Danijel, Gallo, Maurizio, Margeta, Vladimir, Martins, José Manuel, Mercat, Marie J., Moscatelli, Giulia, Núñez, Yolanda, Quintanilla, Raquel, Radović, Čedomir, Razmaite, Violeta, Riquet, Juliette, Savić, Radomir, Schiavo, Giuseppina, Usai, Graziano, Utzeri, Valerio J., Zimmer, Christoph, Ovilo, Cristina, and Fontanesi, Luca

Published
2020
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187. Functional integral approach to multipoint correlators in 2d critical systems

Author

Fernandez, V. I. and Naon, C. M.

Subjects
High Energy Physics - Theory
Abstract

We extend a previously developed technique for computing spin-spin critical correlators in the 2d Ising model, to the case of multiple correlations. This enables us to derive Kadanoff-Ceva's formula in a simple and elegant way. We also exploit a doubling procedure in order to evaluate the critical exponent of the polarization operator in the Baxter model. Thus we provide a rigorous proof of the relation between different exponents, in the path-integral framework., Comment: 10 pages, LaTex, no figures

Published
1996
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194. FIGURE 4 from Phase II Window Study of Olaparib Alone or with Cisplatin or Durvalumab in Operable Head and Neck Cancer

Author

Moutafi, Myrto, primary, Koliou, Georgia-Angeliki, primary, Papaxoinis, George, primary, Economopoulou, Panagiota, primary, Kotsantis, Ioannis, primary, Gkotzamanidou, Maria, primary, Anastasiou, Maria, primary, Pectasides, Dimitrios, primary, Kyrodimos, Efthymios, primary, Delides, Alexander, primary, Giotakis, Evangelos, primary, Papadimitriou, Nikolaos G., primary, Panayiotides, Ioannis G., primary, Perisanidis, Christos, primary, Fernandez, Aileen I., primary, Xirou, Vasiliki, primary, Poulios, Christos, primary, Gagari, Eleni, primary, Yaghoobi, Vesal, primary, Gavrielatou, Niki, primary, Shafi, Saba, primary, Aung, Thazin Nwe, primary, Kougioumtzopoulou, Andromachi, primary, Kouloulias, Vassilis, primary, Palialexis, Konstantinos, primary, Gkolfinopoulos, Stavros, primary, Strati, Areti, primary, Lianidou, Evi, primary, Fountzilas, George, primary, Rimm, David L., primary, Foukas, Periklis G., primary, and Psyrri, Amanda, primary

Published
2023
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195. FIGURE 3 from Phase II Window Study of Olaparib Alone or with Cisplatin or Durvalumab in Operable Head and Neck Cancer

Author

Moutafi, Myrto, primary, Koliou, Georgia-Angeliki, primary, Papaxoinis, George, primary, Economopoulou, Panagiota, primary, Kotsantis, Ioannis, primary, Gkotzamanidou, Maria, primary, Anastasiou, Maria, primary, Pectasides, Dimitrios, primary, Kyrodimos, Efthymios, primary, Delides, Alexander, primary, Giotakis, Evangelos, primary, Papadimitriou, Nikolaos G., primary, Panayiotides, Ioannis G., primary, Perisanidis, Christos, primary, Fernandez, Aileen I., primary, Xirou, Vasiliki, primary, Poulios, Christos, primary, Gagari, Eleni, primary, Yaghoobi, Vesal, primary, Gavrielatou, Niki, primary, Shafi, Saba, primary, Aung, Thazin Nwe, primary, Kougioumtzopoulou, Andromachi, primary, Kouloulias, Vassilis, primary, Palialexis, Konstantinos, primary, Gkolfinopoulos, Stavros, primary, Strati, Areti, primary, Lianidou, Evi, primary, Fountzilas, George, primary, Rimm, David L., primary, Foukas, Periklis G., primary, and Psyrri, Amanda, primary

Published
2023
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196. Supplementary Figure 2 from Phase II Window Study of Olaparib Alone or with Cisplatin or Durvalumab in Operable Head and Neck Cancer

Author

Moutafi, Myrto, primary, Koliou, Georgia-Angeliki, primary, Papaxoinis, George, primary, Economopoulou, Panagiota, primary, Kotsantis, Ioannis, primary, Gkotzamanidou, Maria, primary, Anastasiou, Maria, primary, Pectasides, Dimitrios, primary, Kyrodimos, Efthymios, primary, Delides, Alexander, primary, Giotakis, Evangelos, primary, Papadimitriou, Nikolaos G., primary, Panayiotides, Ioannis G., primary, Perisanidis, Christos, primary, Fernandez, Aileen I., primary, Xirou, Vasiliki, primary, Poulios, Christos, primary, Gagari, Eleni, primary, Yaghoobi, Vesal, primary, Gavrielatou, Niki, primary, Shafi, Saba, primary, Aung, Thazin Nwe, primary, Kougioumtzopoulou, Andromachi, primary, Kouloulias, Vassilis, primary, Palialexis, Konstantinos, primary, Gkolfinopoulos, Stavros, primary, Strati, Areti, primary, Lianidou, Evi, primary, Fountzilas, George, primary, Rimm, David L., primary, Foukas, Periklis G., primary, and Psyrri, Amanda, primary

Published
2023
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197. Supplementary Table 5 from Phase II Window Study of Olaparib Alone or with Cisplatin or Durvalumab in Operable Head and Neck Cancer

Author

Moutafi, Myrto, primary, Koliou, Georgia-Angeliki, primary, Papaxoinis, George, primary, Economopoulou, Panagiota, primary, Kotsantis, Ioannis, primary, Gkotzamanidou, Maria, primary, Anastasiou, Maria, primary, Pectasides, Dimitrios, primary, Kyrodimos, Efthymios, primary, Delides, Alexander, primary, Giotakis, Evangelos, primary, Papadimitriou, Nikolaos G., primary, Panayiotides, Ioannis G., primary, Perisanidis, Christos, primary, Fernandez, Aileen I., primary, Xirou, Vasiliki, primary, Poulios, Christos, primary, Gagari, Eleni, primary, Yaghoobi, Vesal, primary, Gavrielatou, Niki, primary, Shafi, Saba, primary, Aung, Thazin Nwe, primary, Kougioumtzopoulou, Andromachi, primary, Kouloulias, Vassilis, primary, Palialexis, Konstantinos, primary, Gkolfinopoulos, Stavros, primary, Strati, Areti, primary, Lianidou, Evi, primary, Fountzilas, George, primary, Rimm, David L., primary, Foukas, Periklis G., primary, and Psyrri, Amanda, primary

Published
2023
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198. Supplementary Table 1 from Phase II Window Study of Olaparib Alone or with Cisplatin or Durvalumab in Operable Head and Neck Cancer

Author

Moutafi, Myrto, primary, Koliou, Georgia-Angeliki, primary, Papaxoinis, George, primary, Economopoulou, Panagiota, primary, Kotsantis, Ioannis, primary, Gkotzamanidou, Maria, primary, Anastasiou, Maria, primary, Pectasides, Dimitrios, primary, Kyrodimos, Efthymios, primary, Delides, Alexander, primary, Giotakis, Evangelos, primary, Papadimitriou, Nikolaos G., primary, Panayiotides, Ioannis G., primary, Perisanidis, Christos, primary, Fernandez, Aileen I., primary, Xirou, Vasiliki, primary, Poulios, Christos, primary, Gagari, Eleni, primary, Yaghoobi, Vesal, primary, Gavrielatou, Niki, primary, Shafi, Saba, primary, Aung, Thazin Nwe, primary, Kougioumtzopoulou, Andromachi, primary, Kouloulias, Vassilis, primary, Palialexis, Konstantinos, primary, Gkolfinopoulos, Stavros, primary, Strati, Areti, primary, Lianidou, Evi, primary, Fountzilas, George, primary, Rimm, David L., primary, Foukas, Periklis G., primary, and Psyrri, Amanda, primary

Published
2023
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199. Supplementary Figure 4 from Phase II Window Study of Olaparib Alone or with Cisplatin or Durvalumab in Operable Head and Neck Cancer

Author

Moutafi, Myrto, primary, Koliou, Georgia-Angeliki, primary, Papaxoinis, George, primary, Economopoulou, Panagiota, primary, Kotsantis, Ioannis, primary, Gkotzamanidou, Maria, primary, Anastasiou, Maria, primary, Pectasides, Dimitrios, primary, Kyrodimos, Efthymios, primary, Delides, Alexander, primary, Giotakis, Evangelos, primary, Papadimitriou, Nikolaos G., primary, Panayiotides, Ioannis G., primary, Perisanidis, Christos, primary, Fernandez, Aileen I., primary, Xirou, Vasiliki, primary, Poulios, Christos, primary, Gagari, Eleni, primary, Yaghoobi, Vesal, primary, Gavrielatou, Niki, primary, Shafi, Saba, primary, Aung, Thazin Nwe, primary, Kougioumtzopoulou, Andromachi, primary, Kouloulias, Vassilis, primary, Palialexis, Konstantinos, primary, Gkolfinopoulos, Stavros, primary, Strati, Areti, primary, Lianidou, Evi, primary, Fountzilas, George, primary, Rimm, David L., primary, Foukas, Periklis G., primary, and Psyrri, Amanda, primary

Published
2023
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200. Supplementary Table 2 from Phase II Window Study of Olaparib Alone or with Cisplatin or Durvalumab in Operable Head and Neck Cancer

Author

Moutafi, Myrto, primary, Koliou, Georgia-Angeliki, primary, Papaxoinis, George, primary, Economopoulou, Panagiota, primary, Kotsantis, Ioannis, primary, Gkotzamanidou, Maria, primary, Anastasiou, Maria, primary, Pectasides, Dimitrios, primary, Kyrodimos, Efthymios, primary, Delides, Alexander, primary, Giotakis, Evangelos, primary, Papadimitriou, Nikolaos G., primary, Panayiotides, Ioannis G., primary, Perisanidis, Christos, primary, Fernandez, Aileen I., primary, Xirou, Vasiliki, primary, Poulios, Christos, primary, Gagari, Eleni, primary, Yaghoobi, Vesal, primary, Gavrielatou, Niki, primary, Shafi, Saba, primary, Aung, Thazin Nwe, primary, Kougioumtzopoulou, Andromachi, primary, Kouloulias, Vassilis, primary, Palialexis, Konstantinos, primary, Gkolfinopoulos, Stavros, primary, Strati, Areti, primary, Lianidou, Evi, primary, Fountzilas, George, primary, Rimm, David L., primary, Foukas, Periklis G., primary, and Psyrri, Amanda, primary

Published
2023
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